I am looking for a way to create map tiles from OSM data but I would like the resulting map tile images rendered at a 45 degree angle. Is there any way this can be done? I have never see such an example.
Maybe you could rely on osm2x3d project. Demo here: http://web.osm2x3d.net The main feature is to convert osm xml data to x3d format (3D scene graph). Also using x3dom js library, it allows to render the result natively in a web browser.